Hydraulic-mining shovel



Feb. 2, 1932. c. J, DUMBOLTON ,8

HYDRAULIC MINING SHOVEL Filed June 16, 1950 zar/e; J. 001 272 2792):

' K WWW Patented Feb. 2, 1932 YFF E,

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Y A1 Jp1ieation filed June 16,

My invention has reference in particular shovel'adapted tobe utilized 1n elevatingand conveying unworkable materlal away 'from' the immediatelocation of'an'hydraulic 5 mining operationq In; suclropera'tions, where an hydraulic monitor is; employed in sluicing placer ground, boulders and other unworkable materi'alflaccumulate by force otgravity at the workings, covering up payim'atter and otherwise interfering with the .sluicing. It is 'includlng said lines, the lines and arm being neither desirable nor practical to force said material to the sluices commonlyprov1ded, and inzorder toehmmate the same theprao 't'ice generally heretofore has been to segregate the unworkablematerialby hand labor so asto leavethe adjacent workable matter unhampered and freely subject to'the sluicing action ofthe monitor, the saidmaterial then. being hauled away, .or otherwise set aside. .Thesegregation and disposal of the unworkablematerial is thus efi'ected in a manner "which obviously is f slow, laborious and expensive. v

This invention is designed to do' away withithe disadvantages incident to a handipic'king of said material, and also to greatly facilitate itsremoval'from the site of the sluicingh I The objects of the invention, generally stated, are, to provide a shovel, operatively connected with a derrick and having its scoop portion constructed mainly of a plurality of spaced tines which act particularly upon said material, leaving the workable matter in a position to besluiced; to afford in such a shovel pivotal connections which permit it to follow the ground on which it is operating and to dump said material at any desired angle; and, to make available a device of this character which is simple in construction and one that will meet the requirements of rough usage.

Other objects, capabilities and advantages will appear as the description of the invention progresses.

I11 the accompanying drawings Figure 1 is a top view of the shovel,'whieh 1 shovel includes a handle-like arm for connecting 1t with said derrlck, sald arm being 2- 2, of Fig. 1. i

1930. Serial No. 461,364,}

broken away; r r F 1g. '2 IS a cross section now disposed in a-horizontal position and drawn on the line Fig. 3 is a sideelevation of'the shovel and part 01 said derrick, including a boom and lines mounted thereon for operating said shovel, theboom and said arm being shown in broken sections andthe shovel in a leading position' l Fig. 4 is also a side elevation of said shovel,

able variety and actuated by any suitable power, and 2 and 3 lines operatively 'connected with the derrick and utilized in sup porting and manipulating the shovel, as will be hereinafter detailedp The shovel, chiefly of metallic construe f ti'on, comprises a yoke 10 carrying the arm ieret'o'for'e referred to andnow designated as; 11. Said arm, disposed cen'trallyof the yoke and extending longitudinally of the shovel, isprezterably madeof wood and is secured at one end to the yoke by an angle iron 12'located on eachside of said end' and the bolts 13, as indicated in Fig. 1. 'l4 denotes a rod V threaded at f its ends and mounted in the yoke, the -rod extending through andprojecting beyond each end of said yoke. A plurality of tines are pivotally mounted on said rodand'between the ends of the yoke to form the main scoop pjortion of theshovel. In the present embodimentof theinvention each tine isof identical construction, and consists of t a bar having an horizontal portion'tltifapertured as indicated at16 and beveled at its free I end, as at 17, andi'ts other end formed into bight 18 from which-extends an upstand ingportion 19 terminating in'an eye i 20 adapted to -slidably'engage the rod-14.

Annularspacers 21, which may consist of sectionsofpiping, are-disposed on the rod 14, each being located between-adj acent pairs of said tine's 'and'serving to afford suitable and equal spacing for the tines. 22 designates a rod having threaded ends, extending through the opening 16 in each tine and projecting beyond each of the outer tines of the assembly, said rod being also provided with like annular spacers 21. The rod 22 and said spacers obviously serve to keep the forward ends of the tines in alignment and. properly spaced. A side member 23, apertured as at 24 and adapted to engage the ends of the rods 14 and 22, is disposed at each end of said yoke and pivotally connected with therod 14, each side member being also mounted on the rod 22, and said members are secured in place by the nuts 25 engageable with the rods. Said side members, in cooperation with the yoke, also serve to hold the tines in place. 26 denotes a bail for theshovel, the same being swingingly mounted in the'opening 24c in each of the sidemembers.

The shovel'is operatively connected with the derrick by pivoting the arm 11 to the boom 1 of said derrick, as at 30, and by connecting up the line 2 with said bail, and the line 3 with the eye 31 projecting from said arm.

Theporta-ble derrick, with which the shovel is designed to'be connected, permits it to be brought up to the work as required, and the lines 2 and 3 are controlled by instrumentalities common to derricks and well known to those skilled in the art, and which constitute no part of my invention.

The shovel is positioned for taking up and elevating and dumping said material by the line 2, the line 3 being utilized for holding the shovel in the dumping position desired. Assuming that the shovel is being loaded, its open-work construction will act particularly on the coarser and unworkable material, and if any of the finer and workable matter should be elevated, as the shovel is moved to its dumping location and position through the means provided by the derrick, the said matter will fall from the shovel when it may be subsequently acted upon by the monitor. When the shovel is thus moved to said location and position it may be maintained in place by the line 3, and then dumped by releasing the line 2.

As it may be noted, the scoop portion of the shovel is so connected with the yoke that it will swing to any practical dumping position, and thelme '2, connected as it is with struction described may be made without departing from the spirit of my invention or sacrificing its advantages, hence I ask that I be not confined to the specific structure set forth, except as limited by the appended claims.

I claim; I

1. 'A device of the class described, comprising a yoke, an arm secured to the body of the yoke and extending longitudinally of the shovel, a rod disposed between the ends of the yoke,a plurality of curved and spaced tines formed into a scoop portion and having their rear ends pivotally connected with the rod, a second r'o'd extending through the forward ends of the tines for holding said tines in alignment, a pair of side memberspivotally connected with the first rod and mounted on the second rod, and a bail swingingly secured to the side members.

2. A device of the class described, comprising a member formanipulating the shovel, a yoke carried by said member, a redmounted between the ends of the yoke, a. plurality of tines formed into a scoopportion and'pivotally connected with the rod, an annular spacer mounted on saidfrod and disposed between each pair of said tines, a second rod extending through the tines adapted to reenforce and align said tines, and a pair of side members pivotally connected with the first rod and secured to the second rod.

3. In a device of the class described, a frame, arod mounted in the frame, a plurality of spaced tines formed into a scoop portion and swingingly connected with the rod, a reenforcin'g and aligning rod extending through the tines, and a pair of side members swingingly connected with the firstnamed rod and secured to the second-named rod, the swinging connections for said tines being of such a character as to permit said scoop portion to assume any dumping angle.

CHARLES J. DUMBOLTON.

the bail disposed forwardly in said portion,

carries the greater weight of the load, thereby'taking strain from the pivotal connections of the scoop portion and permitting them to function freely. The dumping range of the shovel is increased by its capability for dumping at various angles, and said shovel presents a construction relatively light in weight but possessing adequate loading capacity for the purposes intended.

Changes in and modifications of the con- 

